Arbor Research, in partnership with the University of Michigan Center for Social Epidemiology and Public Health (CSEPH) and Healthcare Management Solutions (HMS), supports CMS by developing a strategic framework and measure development plan for assessing population health in CMS programs. Health care reform has brought renewed emphasis on population health to the clinical care delivery system. A transformed health care system will effectively bridge the delivery of patient care in clinical settings with population strategies that involve multi-sectorial approaches often located outside of the traditional medical health care delivery system (e.g. social services). Accordingly, there is need for a population health measurement infrastructure that can track progress and hold providers and systems of care accountable for population health processes and outcomes.